The answer is D because they could move slower or faster it depends on if the temperature is high or low
Answer:
Jonas Salk was awarded the Nobel Prize for discovering a way to vaccinate against polio in the United States in the 1950's. This allowed millions of school-age children to avoid crippling disease, and to swim during summer again, as polio was often spread in public swimming areas before.
The statement that best describes how the polio vaccine works is:
It triggers the immune system to produce antobodies to fight the disease-causing agent.
Explanation:
There are two main reasons for this answer. The first one is that every vaccine is aimed to introduce a controlled amount of antigenes to be accepted by the organism. These antigens are made after some studies were conducted in a lab and were obtained from substances that the human body can accept to train the immune system to develop an effective defense for the virus or bacteria on the matter. In our case, the polio vaccine works the same way and allowed to save many lives.
Topographic map shows elevation change
Answer:
Yy, Yy, Yy, Yy
Yellow in color
Explanation:
Let the allele for green seed be represented by "y" and the allele for yellow seed be represented by "Y"
Given Yellow seed color is dominant over green.
Genotype of true breeding green seed parents will be yy
Genotype of true breeding yellow seed parents will be YY
F1 cross
Genotype of all the offspring is heterozygous "Yy"
Phenotype of all the offspring is yellow
